The Rotating Tweets (Twitter widget and shortcode) WordPress plugin suffers from a stored XSS vulnerability due to improper neutralization of input during web page generation (CWE-79). This occurs because the plugin fails to adequately sanitize and escape user-supplied attributes in the 'rotatingtweets' shortcode, allowing authenticated contributors or higher to inject arbitrary scripts. These scripts execute in the context of any user who accesses the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to and including 1.9.10. There is no indication of known exploits in the wild or available patches at this time.

An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages using the vulnerable plugin. These scripts execute in the browsers of users who view the infected pages, potentially leading to theft of user credentials, session tokens, or other malicious actions within the context of the affected site. The vulnerability does not impact availability but compromises confidentiality and integrity to a limited extent. The CVSS score of 6.4 reflects a medium severity level with network attack vector, low attack complexity, and no user interaction required.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or removing the Rotating Tweets plugin if possible. Monitor for updates from the plugin vendor or WordPress security advisories to apply any forthcoming patches promptly.